Building derrick for bunkers



Dec. 13, 1921 1,652,403

F. H. GERDEMAN BUILDING DERRICK FOR BUNKERS Filed Dec. 13. 1926 2Sheets-Sheet 2 1 un a I?! I I 91 gwvwnl'oz wdwm/n Patented Dec. is,1927.

i that -'are'-;formed 1 ofstone staves; or cement seam Gmsm dsrINDIiAYjorIIo, 'AssIeNoR'ro THE nArxonnnfconvnYon- 'oomAnY, or rIunLAY,oHIo;

a CORPORATION or I DIANA,

ga a DERRICK F03 B NKERs Afiplicetiomflld December-13,1926. Serial No.154,636. Y

My invention'yhas forl its obiect to provide a derrick particularlyadapted for. the

' construction :of walls formed oft bonded slabs. The invention haspossibly its great.-

est advantage in the construction of J walls blocks that are placedontheir-endsand have edge grOOve'sand ridges -thatwinterfit, and

wherein the wallsareexte riorly bonded by tension members. that; produceinward pressure upon the-wall. The invention particu- V larlyh'asforits':objectto provide a'derrick whichfwi'll coact with/ exteriorbands to cause the 'blocksof alternate courses to flare wheresbyslabsfmay be easily placed in courses contiguous to those with, which"the blocks are interbondedin the formation of p the. con

structions The invention also provides a means whereb the outwardpressure that producesfthe ared condition maybe easily removed whileat-the same timexthe. workmen are supported so that they maytighten thebands to remove the fiared condition and maintain the cylindricityv ofthe structure as the work p'rogressesm The invention mayfbe contained inderricks of differentf lforrns and for producing constructions that varyin shape and: to illusis shown in' the accompanying :Fig. 1 isaside'v'iew of a constructionthat is: represented as beingbuiltandipartof the structure'beingshown broken away to illustrate partsof the derrick and its operation.

FigI-Qis a topfview of the structure andthe adjustable derrick. Fig. 3illustrates a step in the method of using the derrick. Fig. 4

illustrates a broken view of the connection betweenapart of the tripodand link forming apart of thederrickfshown in Fig. 1

In'the particular form of the Invention i that has been selected for thepurposes illustrating its application, a cylindrical structure is shownin the process of beingformed. The bui-ldingmay be for the purpose ofstoring or containing coal, that is, it' may be a v coal bunkeror itmaybea silo oranysimi- I *la'r structure."Thestructurejis formed ofslabs l' having a, groove onto n e. of its.

edges and a-groove3'on one of its end edges,;

the latteris preferablylon the lower end for the purpose of sheddingwater. Each? block is also provided with a rib 4; ononeof-jits sideedgesand a rib 5 located 011 its top ed e that fit the correspondinggroovespf the; 113-- joining blocks.

alternately with full length slabs inistar tingethees'tructure; Thestructure is bonded byl nean's of bands or rods 7 that are locatedsubstantially at the joints of; alternate courses. -=Theends of thebands'or rods 7 are tied together by. suitable members that. draw theends together and thus tightly clamp the blocks. 'As illustrative ofsuch a means, there isishown in the drawings a block 8 that isclampedbetween the nuts 9 that are'thread ed ontotheendsof each rod 7,1,g In order to support the workmen so that they canreadily place the.blocks in position,

and thus rapidly construct ;the;building, a

derrick lOfiis supported on the up er ed es ofcertain of the blocks; pbe bers or frames 11 that havehooks 12 that fit over the upper edges ofcertain of the blocks. A, plurality of links 13 are connected to theframes 11 bymeans of the ears 14:1 that'are located at points that arealitt-le less'thanthelength?of the blocks below the hooks 12.- Thisplaces the pivot pointof the connection between eaclrlink13 a littleabove thelower end of theblock on which its asso- ;ciated=frame-1lissupported.

The links 13 are also pivotally connected to a ring 15 from which thelinks113 radiate.

The slabs ;1 are-placed on" 'llhBlI endsand halI" length slabs areplaced The derrick 10 is provided with a plurality of'hookedjmem- Thering, 15 is provided with lugs or ears 16 and bolts 17 extend throughirons 18. The ears 16 pivotally connect the links 13 to the ring 15. Thelinks 13 are somewhat longer than the distance between the center ofthe.buildingand the pivot pins in ears 1 L so that vwhen the ring 115 israised to near its highest possible point the links 13 slope up ward tothe frames or members 11' at ,a slight angle.

The ring 15 is connected to a 'U-member' QO-tha't forms a bailforsupporting the'ring 15 1A tripod 19 has itslower ends or feetsupportedon three of the, links 13 atpoints I ber 20. A rope or that arenear to the frames or members 11. The lower ends of the parts of thetripod 19 are pivotally connected to the cars 22 by means of the bolts23. The upper ends of two of the members of the tripod 19 are providedwith bent irons 24; and a bolt 25 extends through the third member ofthe tripod 19 to pivotally connect the tripod members toget ablconnected to the upper end of the tripod an a pulley 27 is connected .to:hhfi Unnamcable 28 extends over the pulleys 26 and 2-7 which may beoperated to raise or lower the rin 15 and the midi of the rope 28 may besuited) y fastened in order tosecure the rlng in the position in-Whichit is thus placed. 1

When the ring 15 is drawn upward the links 13, acting as members of atoggle joint, are pressed outward. Since the hooked members llarepivot-ally connected to the ends of the links 13 at a point slightlyabove the lower ends of the blocks on which they are sup orted, thethrust that is thus pro duced ares the blocks outward. Because of theriband groove interconnection between the blocks, the blocks, adjoiningthose on which the frames 11 are so ported,will likewise be flaredoutward. Tlns increases the spaces between the side edges of theuppermost row of blocks and hence new bloc s may be readily insertedbetween the higher alternate courses. 1 a a r The flaring of the blocksis limited by a band or rod that is placed along-a mid-point of blocksofalternate courses, among which are the blocks on which the hookedmembers or frames 11 are supported. This uppermost band is thus placedalong the upper end edges of the blocks of alternate courses and bymeans of the nuts 9 it is adjusted to permit the desired play of theuppermost blocks to produce the required spaces between them an so astopermit the placement of the contiguous row of blocks in alternatecourses.

When the new row of blocks hasbeen laced in sition, the derrick isloosened by oweringt e ring 15 which operates to reduce the thrust ofthe links 13 a ainst the members 11. The uppermost r0 or band 7 may thusbe tightened so as to draw the blocks into position and tightly bindthem by reason of the grooves and ridges and by the band 7 itself. jThehooked members or frames 11 are then placed so their hooks en gage theuppermost edges of blocks inicourses contiguous to those thatin thepreceding operation supported the frames and' at the the same time asucceeding band 7 ma be placed along the edges of the blocks w new thehooks were previously located, the ends of the band being somewhatloosely connected so that when the ring 15 is drawn'upwards by theoperation of the cable 28 the uppermost rows of blocks will be flaredand secured to the lower ends er. A pulley 126 is also suitsporting themeans connected to the frame for raising spaced from each other to puma,M cad placement of another row of bloc li s ad ing; force. Theoperations described are repeated as the structure of the buildingprogresses.

The workmen are supported on a platform .30 that is supported by rods 31that are members or 'frames 11 and to bars 32 that protrude from theframes 11 and form a triangle that rigidly holds the rods 31 and the:bars 32 in position. If desiredthe rods 31 may be extended upward and aprotec tive railing or cable 33 may be locatedflon or sup orted by theupper-wands of the rods a P anks 34 are located on the bars 132 onwhichthe workmen may stand while plac mg 11 are .to be placed on the hihercourses, the workmen will sit on the en s of the blocks and pick up theframes .11 and place them in position.

of the hooked the blocks 1 in position. When the .1 frames In order tohandlethe blocks a clamp or pulley or p cable 37 w an the cable is drawnto liftthe tongs 35 and the blocks 1. The cabled? may be passed overapulley block 38 that may be supported on the ends of rods 39 and 41.0,one of which may be connected to one of the uppermost blocks and theother con tongs 35 may be connected to a nectedto the upper end of thetripod as \indieated in Fig. 1. As the blocks are raised they are takenby the workmen and placed in position. i

Iclaim: l 1. In a building derrick, a pluralityoi uideroller 36 thatmovesalong a a hooked members, a lurality of links pivotooked membersand extending in radial lanesrclative to each other, means for pivotallyinterconnecting the inner ends. of the links, and means for allyconnecting the raising and lowering the inner ends of the r linksrelative to the outer ends of the links.

2. In a building derrick, a plurality of hooked members, a plurality oflinks ,pavotallyconnecting the hooked members and ere tending in radialother, means for plvotally interconnecting the inner ends of the links,a frame forrsupinner ends of the links and and lowering the inner endsof the links relative to the outer ends of the links.

3.1n a building derrick, a plurality of hooked members, a plurality. oflinks pivotplanes relativeto each 1 y ally connecting the hooked membersand extending in radial planes relative to each other, means forpivotally interconnecting the inner ends of thelinks, a frame supportedon the links near their outer ends and means connected to theframe forraising and lowering the inner ends of the links relative to the outerends of the frames.

4. In a derrick for cylindrical slab walls, a plurality of membersadapted to be located Said members; means for supporting the outer endsof the said links above the lower ends of the next to the last row ofslabs of the Well as it is being built, and means for forcing the outerends of the links and the said members outward to flare the slabs of thelast row outward.

In Witness whereof Ihave hereunto signed my name to this specification.1

FRANK H. GERDEMAN,

